/Engine/Plugins/Runtime/MassEntity/Source/MassEntity/Public/MassEntityManager.h
Moves an entity over to a new archetype by copying over fragments common to both archetypes
void MoveEntityToAnotherArchetype ( [FMassEntityHandle](API\Plugins\MassEntity\FMassEntityHandle) Entity, [FMassArchetypeHandle](API\Plugins\MassEntity\FMassArchetypeHandle) NewArchetypeHandle )